No joy on increasing the young generation. I set it to
-XX:NewRatio=3 and I added the -XX:+AggressiveHeap on the machine that
has 2 procs with hyper-threading. No cpu issues until the memory
exceeds the 750mb mark and the Old Gen in JVMSTAT explodes at the same
time. I did a Load test against the machines last night after making
these changes and adding the reconditions on the Forum article:
http://www.macromedia.com/cfusion/webforums/forum/messageview.cfm?catid=
69&threadid=856745
I ran the load test with 150 users over a 30 minute period and
everything ran smooth. This morning I am only seeing around 10-15
simultaneous users and having issues. This is really getting
frustrating!
Christian
-----Original Message-----
From: Pete Freitag [mailto:[EMAIL PROTECTED]
Sent: Wednesday, August 18, 2004 3:11 PM
To: CF-Talk
Subject: Re: Memory Issues
Christian Watt wrote:
> Peter, the Old Generation garbage collection was over 500mb.
I have a
> screen shot and logs with a stack trace dump, but I don't know
what to
> do from here. Will you take a look or can you tell me who can
help???
> As soon as I restart the service, via command prompt right now
so that I
> can watch gc, the memory immediately explodes again. But
These logs and
> gc graph do show a complete lockup.
>
Christian,
It sounds like your young generation is too small then. You may
want to play with increasing its size. Also if you have multiple CPU's
and they are not too busy you might want to increase
-XX:ParallelGCThreads
You should also read these articles before playing so you
understand what your doing:
http://www.petefreitag.com/articles/gctuning/
http://www.petefreitag.com/item/139.cfm
______________________________________
Pete Freitag
http://www.cfdev.com/
Author of the CFMX Developers Cookbook
http://www.petefreitag.com/bookshelf/
________________________________
[Todays Threads] [This Message] [Subscription] [Fast Unsubscribe] [User Settings] [Donations and Support]
